<template>
  <li
    @mouseenter="isOnMouse = true"
    @mouseleave="isOnMouse = false"
    :class="isOnMouse ? 'active' : ''"
  >
    <label>
      <input
        type="checkbox"
        :checked="isChecked"
        @change="updateTodoList(id)"
      />
      <span>{{ todo }}</span>
    </label>
    <button
      class="btn btn-danger"
      :style="{ display: isOnMouse ? 'block' : 'none' }"
      @click="deleteOneById(id)"
    >
      删除
    </button>
  </li>
</template>

<script>
export default {
  name: "Item",
  props: ["id", "todo", "isChecked", "updateTodoList","deleteOneById"],
  data() {
    return {
      isOnMouse: false,
    };
  },
  
};
</script>

<style scoped>
/*item*/
li {
  list-style: none;
  height: 36px;
  line-height: 36px;
  padding: 0 5px;
  border-bottom: 1px solid #ddd;
}

li label {
  float: left;
  cursor: pointer;
}

li label li input {
  vertical-align: middle;
  margin-right: 6px;
  position: relative;
  top: -1px;
}

li button {
  float: right;
  display: none;
  margin-top: 3px;
}

li:before {
  content: initial;
}

li:last-child {
  border-bottom: none;
}

.active {
  background-color: #666;
}
</style>